Depending on your ruling in re: purple worm poison, the second simulacrum is, alas, probably dead.
Given that no mention of the poison was made before the fight and it's extremely expensive (2,000 gp a dose) and difficult to acquire outside of adventure, which require DM fiat to make a purple worm available, @Hohige: what about replacing it with a regular serpent's venom? That seems a fair middle ground.
The Sorcerer is in front of you out of hiding, Casting Distant Empowered Horrid Wilding. Will you run away or fight?
No, you are on the road. The wizard you saw and attacked has teleported away.